| article html file updated | 31 August 2025 04:20 CEST | Update | https://www.mdpi.com/2079-9276/8/4/172 |
| article html file updated | 20 July 2022 00:00 CEST | Update | - |
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| article pdf uploaded. | 8 November 2019 14:14 CET | Version of Record | https://www.mdpi.com/2079-9276/8/4/172/pdf |
| article xml uploaded. | 8 November 2019 14:14 CET | Update | https://www.mdpi.com/2079-9276/8/4/172/xml |
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